Rosette Nebula from Joshua Tree

JimFox

Moderator
Staff member
One doesn't see too many Roses out in the desert, but you can see one beautiful Rose if you just look up at the sky at night!

The Rosette Nebula from a week ago out at Joshua Tree National Park. I put the reducer in my Askar Fra500 so it was about 380mm. While generally with the 500mm I am trying to get in as tight as I can with smaller objects in the night sky, I decided I wanted to use the Reducer a bit and capture some wider views. At 500mm parts of the outer edges of the Rosette gets cut off. But at 380mm, it gives it just a little breathing room, so I can then crop in a bit to my liking.

152 - Lights at 120 secs with the Optolong L-Pro Filter
30 - Flats
30 - Dark/Flats
30 - Darks

iOptron Gem28
ZWO ASI2600mc Pro
ZWO 120mm Mini - Guide Camera
Askar Fra500 with Reducer = 380mm
Stacked in Pixinsight
BlurXterminator
NoiseXterminator
StarXterminator
Processed in Pixinsight and Photoshop

All comments are welcome,
Jim

SH2_275_RosetteNeb_20231111_dw.jpg
 

AlanLichty

Moderator
I am always surprised at the focal lengths you use to get imagery like this since I assumed it took monster focal lengths (1000mm+) to be able to see something like this. Beautiful result.
 

JimFox

Moderator
Staff member
I am always surprised at the focal lengths you use to get imagery like this since I assumed it took monster focal lengths (1000mm+) to be able to see something like this. Beautiful result.
Thanks Alan!

I have to say that one of the things that surprised me most as I started out in Astrophotography a few years ago was just how large some of these objects are. It's like we innocently will gaze up into the night sky, and all we see are a billion stars, totally oblivious to the realization that there are these huge massive objects up in the sky.
 

Mike Lewis

Staff Member
Love this wider image, the nebulosity trailing off to the right is very cool. This is arguably the best nebula to shoot in the Northern Hemisphere IMHO - it always looks amazing at any scale. You have done a great job on it here.
 
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